A fault code doesn’t yet mean the unit or sensor itself is faulty: often it’s the plug and connector leading to it.
Possible causes
- The unit was replaced (new or from another car) but not coded to this car
- The unit’s part number or software version doesn’t match the car
- Reprogramming didn’t finish: the voltage dropped during it
- Less often, a fault in the unit itself
What you can do yourself
- ESP and traction control, and sometimes ABS, may not work. The brakes still work, but without electronic help — on slippery roads brake smoothly and don’t accelerate hard.
- After repairs the steering angle sensor often needs calibrating with a scan tool.
- This code usually appears after a unit was replaced or reprogrammed. Think about what was replaced or reprogrammed.
- Compare the labels on the old and new unit: part number, hardware (HW) and software (SW) numbers. If they don’t match, the unit may work incorrectly even if the car starts.
- The unit is coded to the car with a scan tool that supports this make. Connect a battery charger while this is done: if the voltage drops, the programming fails.
Stop and don’t drive on if:
- The instrument panel went dark or many warning lights came on at once
- Power steering is gone or the brakes don’t work as usual
On Oleg’s website:Car wiring repair ↗
The explanation comes from the error code reference in the AvtoElektrik PRO app.